syzbot


WARNING in v9fs_fid_get_acl

Status: upstream: reported C repro on 2022/12/01 12:49
Reported-by: syzbot+a83dc51a78f0f4cf20da@syzkaller.appspotmail.com
First crash: 67d, last: 15d

Cause bisection: failed (bisect log)

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5063 at mm/page_alloc.c:5525 __alloc_pages+0x412/0x5b0 mm/page_alloc.c:5525
Modules linked in:
CPU: 0 PID: 5063 Comm: syz-executor964 Not tainted 6.1.0-syzkaller-14594-g72a85e2b0a1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__alloc_pages+0x412/0x5b0 mm/page_alloc.c:5525
Code: ff ff 00 0f 84 c3 fd ff ff 80 ce 01 e9 bb fd ff ff 83 fe 0a 0f 86 ce fc ff ff 80 3d b3 c1 98 0c 00 75 09 c6 05 aa c1 98 0c 01 <0f> 0b 45 31 f6 e9 52 fe ff ff 65 ff 05 15 c1 3e 7e 48 c7 c0 60 3b
RSP: 0018:ffffc90003b7fac0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff9200076ff59 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000014 RDI: 0000000000000000
RBP: 0000000000040d40 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000100000000 R11: 0000000000000000 R12: 0000000000000014
R13: 0000000000000000 R14: 0000000000040d40 R15: ffff888076a50000
FS:  000055555665e3c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe9ca3f5a70 CR3: 000000001c4e6000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __alloc_pages_node include/linux/gfp.h:237 [inline]
 alloc_pages_node include/linux/gfp.h:260 [inline]
 __kmalloc_large_node+0x85/0x160 mm/slab_common.c:1113
 __do_kmalloc_node mm/slab_common.c:956 [inline]
 __kmalloc+0x91/0xd0 mm/slab_common.c:981
 kmalloc include/linux/slab.h:584 [inline]
 kzalloc include/linux/slab.h:720 [inline]
 v9fs_fid_get_acl+0x78/0x120 fs/9p/acl.c:32
 __v9fs_get_acl fs/9p/acl.c:66 [inline]
 v9fs_get_acl+0x120/0x5f0 fs/9p/acl.c:93
 v9fs_mount+0x662/0xca0 fs/9p/vfs_super.c:183
 legacy_get_tree+0x109/0x220 fs/fs_context.c:610
 vfs_get_tree+0x8d/0x2f0 fs/super.c:1489
 do_new_mount fs/namespace.c:3145 [inline]
 path_mount+0x132a/0x1e20 fs/namespace.c:3475
 do_mount fs/namespace.c:3488 [inline]
 __do_sys_mount fs/namespace.c:3697 [inline]
 __se_sys_mount fs/namespace.c:3674 [inline]
 __x64_sys_mount+0x283/0x300 fs/namespace.c:3674
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fedccf6a929
Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffeec5ae3d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffeec5ae3e8 RCX: 00007fedccf6a929
RDX: 0000000020000140 RSI: 0000000020000340 RDI: 0000000000000000
RBP: 00007ffeec5ae3e0 R08: 00000000200006c0 R09: 00007fedccf28bf0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Crashes (22):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Title
ci-upstream-kasan-gce-root 2022/12/25 00:12 upstream 72a85e2b0a1e 9da18ae8 .config strace log report syz C [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-root 2022/12/24 13:18 upstream a27405b2ed9c 9da18ae8 .config console log report syz C [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-root 2022/12/24 09:10 upstream a27405b2ed9c 9da18ae8 .config strace log report syz C [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-root 2022/12/24 08:41 upstream a27405b2ed9c 9da18ae8 .config console log report syz C [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-linux-next-kasan-gce-root 2023/01/20 01:57 linux-next aa5c49149a82 1b826a2f .config console log report syz C [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-linux-next-kasan-gce-root 2022/11/30 19:16 linux-next 9e46a7996732 4c2a66e8 .config strace log report syz C [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-root 2022/12/29 05:06 upstream 1b929c02afd3 44712fbc .config console log report syz [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-linux-next-kasan-gce-root 2023/01/20 02:28 linux-next aa5c49149a82 1b826a2f .config console log report syz [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-selinux-root 2023/01/21 23:29 upstream f883675bf652 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-qemu-upstream 2023/01/21 23:23 upstream f883675bf652 7374c4e5 .config console log report info WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-root 2023/01/21 23:19 upstream f883675bf652 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-smack-root 2023/01/21 23:17 upstream f883675bf652 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-root 2022/12/30 02:53 upstream 2258c2dc850b 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-selinux-root 2022/12/29 21:53 upstream 1b929c02afd3 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-kasan-gce-selinux-root 2022/12/29 16:22 upstream 1b929c02afd3 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-qemu-upstream-386 2023/01/21 23:20 upstream f883675bf652 7374c4e5 .config console log report info WARNING in v9fs_fid_get_acl
ci-upstream-linux-next-kasan-gce-root 2023/01/21 23:20 linux-next d514392f17fd 559a440a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-linux-next-kasan-gce-root 2022/12/29 21:50 linux-next c76083fac3ba 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-linux-next-kasan-gce-root 2022/12/03 19:13 linux-next 9e46a7996732 e080de16 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-linux-next-kasan-gce-root 2022/11/30 16:43 linux-next 9e46a7996732 4c2a66e8 .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-gce-arm64 2023/01/06 21:19 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ae87308093bc 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
ci-upstream-gce-arm64 2023/01/06 20:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ae87308093bc 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] WARNING in v9fs_fid_get_acl
* Struck through repros no longer work on HEAD.